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中文摘要：
这份报纸的主要目的是第一给一个各向异性的 posteriori 错误 estimator.We 用一些新奇途径和技术在各向异性的 meshes.By 下面为第二个顺序问题学习双线性的有限元素的集中，没有整齐假设和伪制服假设要求，最佳的 errorestimates 和一些 superconvergence 结果在 meshes.Then 上被获得，基于这些结果，我们为第二个问题给各向异性的 posteriori 错误估计。
英文摘要：
The main aim of this paper is to give an anisotropic posteriori error estimator. We firstly study the convergence of bilineax finite element for the second order problem under anisotropic meshes. By using some novel approaches and techniques, the optimal error estimates and some superconvergence results axe obtained without the regulaxity assumption and quasi-uniform assumption requirements on the meshes. Then, based on these results, we give an anisotropic posteriori error estimate for the second problem.
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